Indexing issue: Indexed fields in parent document do not get mapped in child documents

I'm new in Symfony, I was working around with FOSUserBundle and it was first time that I used an extended class (my User document) from super-class FSO\UserBundle\Model\User, with XML mapped fields ...

Indexed fields in super-class are not mapped to child class, so search functionality was broken and FOS couldn't find any user with indexed fields ...

As couchdb-odm-bundle is not getting new updates anymore and I needed new symfony core updates, I commented couchdb-odm and couchdb-odm-bundle from composer, so, I'm including them manually ...

I don't know exactly if it got fixed already or not, I fixed my problem myself :P